fix watchOS

Author: swhitty

SwiftDraw/Sources/CanvasUIView.swift

@@ -29,7 +29,7 @@
 //  3. This notice may not be removed or altered from any source distribution.
 //
 
-#if canImport(UIKit)
+#if canImport(UIKit) && !os(watchOS)
 import UIKit
 import SwiftUI
 

SwiftDraw/Sources/SVGView.swift

@@ -98,11 +98,13 @@ public struct SVGView: View {
                 )
             }
         } else {
+            #if !os(watchOS)
             CanvasFallbackView(
                 svg: svg,
                 capInsets: capInsets,
                 resizingMode: resizingMode
             )
+            #endif
         }
     }
 }